synec v0.2.2
synec
Install local npm packages by listing them as localDependencies
in your package.json
.
{
"name": "my-project",
"dependencies": {
"react": "^17.0.0"
},
"localDependencies": {
"my-react-plugin": "../my-react-plugin"
}
}
Features
- Installs npm packages from local folders
- Watches for changes and copies them over directly
- Installs
dependencies
of local packages - Reinstalls only when changes have been made
- Runs
build
orwatch
script before installing plugin - webpack plugin for seamless integration
Installation
Requires
node
>= 14 (Published as ES Module, localDependencies possible with ESM or CJS)
npm install synec
Options
synec --watch
(default false
) Watch localDependencies
for changes until the current script is closed.
synec --no-script
(default true
) Disable running build
or watch
script before installing the plugin.
synec --no-production
(default true
) Don't install localDependencies in process.env.NODE_ENV === 'production'
or webpack production mode.
Usage
There are different ways how and where to integrate the plugin approprite for different use cases.
Installation before running scripts
Add synec
in front of a script
inside package.json
and it will make sure localDependencies
are installed and up-to-date when the following command starts. The next script in the chain will be started once the installation is done.
{
"scripts": {
"start": "synec --watch && webpack serve",
"watch": "synec --watch && webpack watch",
"build": "synec && webpack build"
}
}
Installation together with regular dependencies
localDependencies
can be installed along with regular ones by adding a postinstall script that will be run during a regular install with npm install
.
{
"scripts": {
"start": "webpack --watch",
"postinstall": "synec"
}
}
Right before Build as a webpack Plugin
If your setup is using webpack
using this plugin is preferred. Create a webpack.config.js
and add the plugin there.
// File webpack.config.js
import { LocalDependenciesPlugin } from 'synec'
export default {
plugins: [new LocalDependenciesPlugin()],
}
Note that this only works if your project is set up with ES Modules ("type": "module"
in package.json
). The same options as described above are available.
new LocalDependenciesPlugin({
// Watch localDependencies for changes and automatically copy them over.
watch: true, // Always disabled in webpack-production mode, default: false.
// If available run build or watch script before installation.
script: false, // default, true.
// Also install local dependencies in production mode.
production: false, // default, true.
})
Motivation
If you want to test your plugin or a fork of a popular plugin that you modified locally in your project you can do this by installing it through npm like npm install ../my-plugin
or list it in dependencies as "my-plugin": "file:../my-plugin"
. However this will not install the plugin as it would do for a published npm package. It's creating a symlink to your project inside node_modules
and the plugins dependencies will not be installed in your project as it's using the one's found inside the symlink. For me personally this often resulted in problems and didn't adequately mock the environment that would later exist once the plugin is published on npm.
For a quick solution you can also do npm i --no-save $(npm pack ../my-plugin | tail -1)
which is what this plugin does and what I used to test it. It will install the plugin as if were published to npm.
Upcoming Features
npx synec --path ../my-plugin
- Watch dependencies of local dependencies in package.json
- Watch
localDependencies
object in package.json for changes
Similar
This plugin is similar and partially inspired by relative-deps but provides additional features such as installing plugin dependencies, watching for changes and integration into build tools which are deemed essential for optimal developer experience.
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